Desc: Imperativ: Directed by Krzysztof Zanussi. With Robert Powell, Brigitte Fossey, Sigfrit Steiner, Matthias Habich. Augustin is a 30-year-old university professor. He does not believe in religion. His only belief is in maths, to which he devotes all his time. Then suddenly a series of pressing existential questions start looming in his mind.